QUESTION stringlengths 3 2.5k | ANSWER stringlengths 4 302 | CHOICES sequencelengths 1 4 | RATIONALE stringlengths 0 14.5k ⌀ | dataset stringclasses 8
values | id stringlengths 12 26 |
|---|---|---|---|---|---|
Helicopter pilots can recover from piloting errors by decreasing altitude, turning some of their potential energy into what kind of energy? | D. kinetic | [
"active",
"electrical",
"free",
"kinetic"
] | Helicopter pilots are quite familiar with rotational kinetic energy. They know, for example, that a point of no return will be reached if they allow their blades to slow below a critical angular velocity during flight. The blades lose lift, and it is impossible to immediately get the blades spinning fast enough to rega... | sciq | sciq_0011257 |
3^4+3^4+3^4=? | C. c) 3^5 | [
"a) 3^3",
"b) 3^4",
"c) 3^5",
"d) 3^6"
] | The correct answer is C 3^5
3^5 = 3^4+3^4+3^4 | aqua_rat | aqua_rat_0004394 |
Lucid interval is most commonly seen in - | A. Acute extradural hemorrhage | [
"Acute extradural hemorrhage",
"Chronic Subdural Hemorrhage",
"Acute Subdural Hemorrhage",
"Subarachnoid hemorrhage"
] | Ans. is 'a' i.e., Acute extradural hemorrhage Acute Extradural hematomao Accumulation of blood b/w skull & durao Bleeding is from a branch of middle meningeal artery* in 90% of caseso Trauma is usually severe associated with concussion and skull fracture.o With arterial bleeding, the hematoma expands rapidly, and sympt... | medmcqa | medmcqa_0004289 |
Unlike amphibians, reptiles do not have what stage? | B. larval | [
"egg",
"larval",
"reproductive",
"adult"
] | Unlike amphibians, reptiles do not have a larval stage. Instead, newly hatched reptiles look like smaller versions of the adults. They are able to move about on their own, but they are vulnerable to predators. Even so, most reptile parents provide no care to their hatchlings. In fact, most reptiles don’t even take care... | sciq | sciq_0008838 |
a man prpare the technical document it takes 2 hours for half an hour presentation and technical preparation. its screening takes 30 more minuts to prepare with the other guy.for to present a 7 half an hours how much time it will take | C. 37 1/2 hours | [
"37 hours",
"35 hours",
"37 1/2 hours",
"33 hours"
] | here first 2 hours to prepare a technical document and half-an-hour to screen it ..so total 2 1/2 hour work is need to 1/2 hour presentation....
For 7 1/2 hours presentation...
1/2 hour presentation-------------->>2 1/2 hour work done
7 1/2 hr presentation --------------> x hours work done
just do cross multiplication ... | aqua_rat | aqua_rat_0002921 |
What is the sum of the first 15 terms of an A.P whose 11 th and 7 th terms are 5.25 and 3.25 respectively | A. 56.25 | [
"56.25",
"60",
"52.5",
"5.25"
] | a +10d = 5.25, a+6d = 3.25, 4d = 2, d = ½
a +5 = 5.25, a = 0.25 = ¼, s 15 = 15/2 ( 2 * ¼ + 14 * ½ )
= 15/2 (1/2 +14/2 ) = 15/2 *15/2 =225/ 4 = 56.25
ANSWER:A | aqua_rat | aqua_rat_0002513 |
Investigation to distinguish between pregnancy acquired hemophilia A and lupus anticoagulant? | B. dRVVT | [
"Factor 8 assay",
"dRVVT",
"von Willlebrand Factor assay",
"aPTT"
] | In some cases of pregnancy there is antibody formation against the clotting factors, paicularly against factor 8. Dilute Russell's viper venom time- -In-vitro diagnostic test is based on the ability of the venom of the Russell's viper to induce thrombosis. -The venom contains some substances (RVV-V and RVV-X) which dir... | medmcqa | medmcqa_0006810 |
Which object is powered by an electrical circuit? | B. a flashlight | [
"a drum",
"a flashlight",
"a matchstick",
"a wind-up toy"
] | arc_easy | arc_easy_0000089 | |
A common characteristic of all living things is that they | C. are made of cells. | [
"breathe air.",
"walk upright.",
"are made of cells.",
"use sunlight for growth."
] | arc_easy | arc_easy_0002229 | |
Matter is made of very small particles called atoms. Atoms can be linked together by chemical bonds. When two or more atoms link together, they form a molecule.
In a chemical change, the chemical bonds in the molecules break. The atoms then link together to form different molecules. The types of molecules in matter bef... | D. Both are chemical changes. | [
"Both are only physical changes.",
"Both are caused by heating.",
"Both are caused by cooling.",
"Both are chemical changes."
] | Step 1: Think about each change.
A piece of a pear turning brown is a chemical change. The substances in the pear react with oxygen in the air and turn into a different type of matter.
If you scrape off the brown part of the pear, the inside will still be white. The inside hasn't touched the air. So the chemical change... | scienceqa_textonly | scienceqa_textonly_0000651 |
There is enough provisions for 600 men in an army camp for 25 days. If there were 250 men less, how long will the provision last? | D. 60days | [
"10days",
"40days",
"50days",
"60days"
] | Exp: We have, M1D1 = M2D2
600*25= 250* D2
D2 = 600*25/250 = 60 days.
Answer: D | aqua_rat | aqua_rat_0005019 |
Tachyzoites are seen in - | A. Toxoplasma | [
"Toxoplasma",
"Toxocara",
"Pulmonary eosinopjilia",
"Ascaris"
] | rapidly multiplying Proliferative forms of trophozoites In pseudocyst seen in acute infection (refer pgno:64 baveja 3 rd edition) | medmcqa | medmcqa_0006855 |
Sandy buys an old scooter for $800 and spends $200 on its repairs. If Sandy sells the scooter for $1200, what is the gain percent? | C. 20% | [
"15%",
"18%",
"20%",
"22%"
] | selling price / total cost = 1200/1000 = 1.2
The gain percent is 20%.
The answer is C. | aqua_rat | aqua_rat_0003274 |
In myocardial infarction, the infarct acquires hyperemic rim with a yellow centre at - | A. 3-7 days | [
"3-7 days",
"10-20 days",
"7-14 days",
"1-2 hours"
] | null | medmcqa | medmcqa_0001602 |
What do water, aluminum, redwood trees, and valley quail all have in common? | D. They are all made of atoms. | [
"They are all pure elements.",
"They are all made of cells.",
"They are all living creatures.",
"They are all made of atoms."
] | arc_challenge | arc_challenge_0000674 | |
In how many ways letters of the word RSCUPERATE be arranged? | D. 302400 | [
"357898",
"654326",
"865453",
"302400"
] | RESUPERATE has 10 letters, out of which E repeated 3 times, R repeated 2 times. Hence total ways = 10! / (3!*2!) = 302400 ways
E | aqua_rat | aqua_rat_0007824 |
What is the measure of change in velocity of a moving object? | B. acceleration | [
"transmission",
"acceleration",
"vibration",
"kinetic energy"
] | Acceleration is a measure of the change in velocity of a moving object. It shows how quickly velocity changes. Acceleration may reflect a change in speed, a change in direction, or both. Because acceleration includes both a size (speed) and direction, it is a vector. | sciq | sciq_0002527 |
C and D started a business by investing Rs.1000/- and Rs.1500/- respectively. Find the D’s share out of a total profit of Rs.500: | D. 100 | [
"400",
"300",
"200",
"100"
] | C = Rs.1000/-
D = Rs.1500/-
C share 2 parts & D share 3 parts
Total 5 parts -----> Rs.500/-
----> 1 part -------> Rs.100/-
D share = 3 parts -----> Rs.300/-
D | aqua_rat | aqua_rat_0001438 |
Which statement is the best description of the Milky Way galaxy? | D. a group of stars, dust, and planets held together by gravity | [
"a collection of gases held together by inertia",
"a group of planets revolving around a single star",
"a collection of stars and gases with the Sun as its center",
"a group of stars, dust, and planets held together by gravity"
] | arc_easy | arc_easy_0000988 | |
Which type of organism is the best at fixing nitrogen? | A. bacteria | [
"bacteria",
"fungi",
"protists",
"animals"
] | arc_easy | arc_easy_0001248 | |
Students studying rocks notice that in a particular location there are many igneous rocks that are very similar. This observation best supports which statement? | D. A nearby volcano had once been active. | [
"A nearby volcano is tall.",
"A nearby volcano is inactive.",
"A nearby volcano is about to erupt.",
"A nearby volcano had once been active."
] | arc_easy | arc_easy_0002172 | |
The mechanism by which cytosol pyruvate is transported to mitochondria is | B. Proton symport | [
"Chloride antiport",
"Proton symport",
"ATP dependent antiport",
"Facilitated uniport"
] | Pyruvate is formed from glucose oxidation (glycolysis) in cytosol.
It is transported into the mitochondria along with Er (proton) symport by a monocarboxylate carrier. | medmcqa | medmcqa_0004607 |
What are the three classifications of elements? | C. metals, non-metals and metaloids | [
"metals, non-metals and alkaloids",
"alkaloids, metaloids, and non-metals",
"metals, non-metals and metaloids",
"metals, metaloids, and alkaloids"
] | The majority of known elements are classified as metals. Metals are elements that are lustrous, or shiny. They are also good conductors of electricity and heat. Examples of metals include iron, gold, and copper. Fewer than 20 elements are classified as nonmetals. Nonmetals lack the properties of metals. Examples of non... | sciq | sciq_0001174 |
A single discount equivalent to the discount series of 20%, 10% and 5% is? | C. 31.6 | [
"31.7",
"31.21",
"31.6",
"31.37"
] | 100*(80/100)*(90/100)*(95/100)
= 68.4
100 - 68.4
= 31.6
Answer:C | aqua_rat | aqua_rat_0004182 |
Dutch elm trees used to be common, beautiful trees in the united states. now most of them have been killed by what? | B. dutch elm disease | [
"carbon dioxide",
"dutch elm disease",
"cancer",
"beetles"
] | Dutch elm trees used to be common, beautiful trees in the United States. Now most of them, like this tree, have been killed by Dutch elm disease. Dutch elm disease is caused by a fungus. This is just one example of how fungi can interact with other species. | sciq | sciq_0008663 |
A school’s annual budget for the purchase of student computers increased by 50% this year over last year. If the price of student computers increased by 20% this year, then the number of computers it can purchase this year is what percent greater than the number of computers it purchased last year? | C. 25% | [
"33.33%",
"40%",
"25%",
"28%"
] | Lats year: budget = $100, price = $1 --> the number of computers purchased = 100/1 = 100;
This year: budget = $150, price = $1.2 --> the number of computers purchased = 150/1.2 = 125.
Increase in the number of computers purchased = 25%.
Answer: C. | aqua_rat | aqua_rat_0004002 |
The cost of 3 kg of sugar is $30. What will the cost of 8 kg of sugar be? | C. 80 | [
"20",
"40",
"80",
"160"
] | 3 kg costs $30
1 kg costs $10
8 kg costs $80
The answer is C. | aqua_rat | aqua_rat_0007177 |
Which of the following antismoking drugs can lead to suicidal ideation? | C. Varenicline | [
"Baclofen",
"Rimonobant",
"Varenicline",
"Naltrexone"
] | Vareniciline is a partial agonist at α4 β2 substype of nicotine receptor used to treat tobbacco addiction.
Side effects include suicidal ideation, nausea, headache & insomnia. | medmcqa | medmcqa_0006086 |
Where do living things obtain the energy to carry out all life processes? | D. food | [
"oxygen",
"fuel",
"waste",
"food"
] | Living things need energy to carry out all life processes. They get energy from food. | sciq | sciq_0007848 |
What is the name of the organelle that helps make and transport proteins and lipids? | A. endoplasmic reticulum | [
"endoplasmic reticulum",
"mitochondria",
"nucleus",
"plasma membrane"
] | The endoplasmic reticulum (ER) is an organelle that helps make and transport proteins and lipids. It’s made of folded membranes. Bits of membrane can pinch off to form tiny sacs called vesicles. The vesicles carry proteins or lipids away from the ER. | sciq | sciq_0010470 |
There are 3 numbers A, B and C. If A:B = 3/4, B:C = 4/5, C:D = 5/6, then A:D will be? | A. 1 : 2 | [
"1 : 2",
"3 : 5",
"5 : 7",
"6 : 11"
] | Sol. A : B = 3 : 4, B : C = 4 : 5, C : D = 5 : 6
∴A∶B∶C∶D= 3 : 4 : 5 : 6.
Thus, A : D = 3 : 6 or, 1 : 2
A | aqua_rat | aqua_rat_0001689 |
Dementia is a feature of which disease? | A. Whipple | [
"Whipple",
"Celiac",
"Tropical sprue",
"Chron"
] | Whipple : Other features are nystagmus, ophthalmoplegia, joint pains. | medmcqa | medmcqa_0004179 |
Since electrons are charged, their intrinsic spin creates a what? | C. intrinsic magnetic field | [
"suppressed electrical field",
"magnified rupulsed field",
"intrinsic magnetic field",
"intrinsic electrical field"
] | We already know that the magnitude of angular momentum is quantized for electron orbits in atoms. The new insight is that the direction of the orbital angular momentum is also quantized. The fact that the orbital angular momentum can have only certain directions is called space quantization. Like many aspects of quantu... | sciq | sciq_0010505 |
What are butterflies and bees an example of? | A. pollinators | [
"pollinators",
"species",
"spores",
"parasites"
] | sciq | sciq_0003896 | |
Most dependent pa of abdomen in standing position is | B. Pouch of douglas | [
"Vesicouterine pouch",
"Pouch of douglas",
"Morrison pouch",
"Left paracolic gutter"
] | The recto-uterine pouch (cul-de-sac or pouch of Douglas) is the extension of the peritoneal cavity between the rectum and the posterior wall of the uterus. It is the most inferior aspect of the peritoneal cavity and therefore the first location where free fluid accumulates . ref - BDC 6e vol2 pg244 | medmcqa | medmcqa_0007737 |
Light reflex is carried through: March 2005 | D. Cranial nerve II | [
"Cranial nerve VI",
"Cranial nerve VII",
"Cranial nerve V",
"Cranial nerve II"
] | Ans. D: Cranial nerve II The optic nerve is responsible for the afferent limb of the light reflex - it senses the incoming light. The oculomotor nerve is responsible for the efferent limb of the light reflex - it drives the muscles that constrict the pupil. Neuron 1: The light reflex pathway begins with retinal ganglio... | medmcqa | medmcqa_0003591 |
When positive integer n is divided by 3, the remainder is 1. When n is divided by 8, the remainder is 5. What is the smallest positive integer p, such that (n + p) is a multiple of 15? | B. 2 | [
"1",
"2",
"5",
"19"
] | When positive integer n is divided by 3, the remainder is 1 i.e., n=3x+1
values of n can be one of {1, 4, 7, 10, 13, 16, 19, 22..............49, 52, 59..................}
Similarly,
When n is divided by 8, the remainder is 5..i.e., n=7y+5
values of n can be one of {5, 13, 21, 29, 37, 45, 53, 61........}
combining both ... | aqua_rat | aqua_rat_0008795 |
Granular deposition of IgA at dermal papillae on immunofluorescence is seen in: | B. Dermatitis herpetiformis | [
"Herpes gestationalis",
"Dermatitis herpetiformis",
"Bullous pemphigoid",
"IgA dermatosis of childhood"
] | Ans. b. Dermatitis herpetiformis Granular deposition of IgA at dermal papillae on immunofluorescence is seen in dermatitis herpetiformis.Dermatitis Herpetiformis: Diagnosis is confirmed by direct immunofluorescence microscopy of normal appearing or faintly erythematous perilesional skin (adjacent to active lesion), by ... | medmcqa | medmcqa_0001042 |
Some of 50%-intensity red paint is replaced with 25% solution of red paint such that the new paint intensity is 45%. What fraction of the original paint was replaced? | B. 1/5 | [
"1/30",
"1/5",
"2/3",
"3/4"
] | 45% is 20%-points above 25% and 5%-points below 50%.
Thus the ratio of 25%-solution to 50%-solution is 1:4.
1/5 of the original paint was replaced.
The answer is B. | aqua_rat | aqua_rat_0009033 |
Evaluate (51 + 52 + 53 + ... + 100) | A. 3775 | [
"3775",
"3665",
"3456",
"3459"
] | Sn = (1 + 2 + 3 + ... + 50 + 51 + 52 + ... + 100) - (1 + 2 + 3 + ... + 50)
= (50 x 101) - (25 x 51)
= (5050 - 1275)
= 3775.
Option A | aqua_rat | aqua_rat_0000702 |
Which is not an anxiolytic - | A. Risperidone | [
"Risperidone",
"SSRI",
"Clonazepam",
"Buspirone"
] | Ans. is 'a' i.e., Risperidone | medmcqa | medmcqa_0005159 |
Which of the following opioid analgesic acts primarily through lc opioid receptors? | A. Pentazocine | [
"Pentazocine",
"Methadone",
"Buprenorphine",
"Pethidine"
] | null | medmcqa | medmcqa_0004651 |
Metamorphic rocks form when an existing rock is changed by heat or what? | D. pressure | [
"cold",
"radiation",
"chemical reaction",
"pressure"
] | Metamorphic rocks form when an existing rock is changed by heat or pressure. The minerals in the rock change but do not melt. The rock experiences these changes within the Earth. | sciq | sciq_0004223 |
Ross is 20 years older than his daughter Julie. In 5 years Ross will be twice as old as Julie. What is Julies current age. | B. 15 | [
"10",
"15",
"20",
"30"
] | Now: Julie = x, Ross =x+20
In 5 years Julie = x+5, Ross = x+20+5 or 2(x+5)
x+20+5 = 2(x+5)
x+25=2x+10
25=x+10
15=x
Julie is 15 years old, the answer is B) | aqua_rat | aqua_rat_0007841 |
The gingiva is attached to the tooth by: | D. Gingival fibers | [
"Lamina propria",
"Periosteum",
"Epithelial attachment",
"Gingival fibers"
] | null | medmcqa | medmcqa_0002798 |
A glucose molecule contains 6 carbon, 12 hydrogen and 6 oxygen atoms. During photosynthesis, green plants create glucose daily. If, over a period of 12 days, an eucalyptus plant (a green plant) creates 12,000 molecules of glucose then approximately how many more atoms of hydrogen than carbon are created on average per ... | B. 6,000 | [
"60,000",
"6,000",
"2,500",
"250"
] | Solution:
We know that 12,000 glucose molecules are created over a period of 12 days. Therefore 12,000/12 = 1,000 glucose molecules are created on average per day.
Each glucose molecule contains 6 carbon atoms and 12 hydrogen atoms. So 1,000 glucose molecules contain 6 × 1,000 = 6,000 carbon atoms and 12 × 1,000 = 12,0... | aqua_rat | aqua_rat_0005129 |
X, Y, and Z are consecutive numbers and X > Y > Z. Also, X + 3Y + 3Z = 5Y + 4. What is the value of Z? | B. 2 | [
"6",
"2",
"4",
"3"
] | If X, Y, and Z are consecutive numbers and X > Y > Z, then Y = Z+1 and X = Z+2.
X + 3Y + 3Z = 5Y + 4
Z+2+3Z+3+3Z = 5Z+5+4
2Z = 4
Z = 2
The answer is E. | aqua_rat | aqua_rat_0009934 |
Without the dominant disturbance, the fire-adapted species are usually outcompeted and biodiversity is what? | C. reduced | [
"increased",
"unaffected",
"reduced",
"immaterial"
] | sciq | sciq_0000578 | |
Human bodies have complex structures that support growth and survival. What is the most basic structure of the human body that supports growth and survival? | A. a cell | [
"a cell",
"a tissue",
"an organ",
"an organ system"
] | arc_challenge | arc_challenge_0000621 | |
The length of a year is equivalent to the time it takes for one
A. rotation of Earth
B. rotation of the Sun
C. revolution of Earth around the Sun
D. revolution of the Sun around Earth
Answer: | C. revolution of Earth around the Sun
| [
""
] | To understand why the correct answer is C. "revolution of Earth around the Sun," let's analyze each option step by step.
A. **Rotation of Earth**: This refers to the spinning of the Earth on its axis. One complete rotation takes approximately 24 hours, which defines the length of a day, not a year.
B. **Rotation of t... | mmlu | mmlu_0000161 |
Where is the first place a scientist should present new research data about the structure of a galaxy in order to receive the most appropriate review of the research? | C. a peer-reviewed science journal | [
"a high school science classroom",
"a university science blog",
"a peer-reviewed science journal",
"a popular science news magazine"
] | arc_easy | arc_easy_0001502 | |
The monosaccharide glucose is broken down through a series of enzyme-catalyzed reactions known as what? | B. glycolysis | [
"Digestion",
"glycolysis",
"photosynthesis",
"Respiration"
] | The monosaccharide glucose is broken down through a series of enzyme-catalyzed reactions known as glycolysis. | sciq | sciq_0003503 |
What do we call the diffusion of water across a membrane because of a difference in concentration? | C. osmosis | [
"cell transportation",
"electrolysis",
"osmosis",
"hemostasis"
] | The diffusion of water across a membrane because of a difference in concentration is called osmosis. | sciq | sciq_0003297 |
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | B. 25 inches | [
"25 miles",
"25 inches",
"25 yards",
"25 feet"
] | The best estimate for the length of a leather belt is 25 inches.
25 feet, 25 yards, and 25 miles are all too long. | scienceqa_textonly | scienceqa_textonly_0000138 |
What planet has the most volcanoes? | B. venus | [
"Earth",
"venus",
"uranus",
"Mars"
] | Venus has more volcanoes than any other planet. There are between 100,000 and one million volcanoes on Venus! Most of the volcanoes are now inactive. There are also a large number of craters. This means that Venus doesn’t have tectonic plates. Plate tectonics on Earth erases features over time. Figure below is an image... | sciq | sciq_0003305 |
Find out the wrong term.
2, 5, 10, 50, 500, 5000 | D. 5000 | [
"5",
"10",
"50",
"5000"
] | 2*5=10
5*10=50
10*50=500
50*?=5000
ANSWER:D | aqua_rat | aqua_rat_0007164 |
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A foo... | A. 4 yards | [
"4 yards",
"4 feet",
"4 miles",
"4 inches"
] | The best estimate for the length of a seesaw is 4 yards.
4 inches and 4 feet are too short. 4 miles is too long. | scienceqa_textonly | scienceqa_textonly_0000602 |
If the average weights of three groups of 15,20,25 children respectively is 20,25,30 what is the average weights of all the children? | D. 25.83 | [
"32.89",
"12.89",
"38.76",
"25.83"
] | Average weights of group 1 =20
children in group 1 = 15
Total weights of group 1 = 15*20
Average weights of group 2 = 25
children in group 2 = 20
Total weights of group 2 = 25*20
Average weights of group 3 = 30
children in group 3 = 25
Total weights of group 3 = 25*30
Total children = 15+20+ 25 = 60
Average weights of ... | aqua_rat | aqua_rat_0001450 |
The average (arithmetic mean) of four numbers is 4x + 1. If one of the numbers is x, what is the average of the other three numbers? | C. 5x + 4/3 | [
"x + 1",
"3x + 3",
"5x + 4/3",
"5x + 4"
] | If the average of four numbers is 4x + 1, then the sum of all four numbers if 4 * (4x + 1) = 16x + 12. If one of the numbers is x, then the average of the remaining three numbers would be: (16x + 4 - x)/3 = (15x + 4)/3 = 5x + 4/3.
Answer is C. | aqua_rat | aqua_rat_0001783 |
Which one of the following is not a cause for restrictive cardiomyopathy - | A. Alcohol | [
"Alcohol",
"Hemochromatosis",
"Amyloidosis",
"sarcoidosis"
] | null | medmcqa | medmcqa_0002990 |
21 ball numbered 1 to 21. A ballis drawn and then another ball is drawn without replacement. | C. 9/42 | [
"5/34",
"3/37",
"9/42",
"5/41"
] | The probability that first toy shows the even number,
=1021=1021
Since, the toy is not replaced there are now 9 even numbered toys and total 20 toys left.
Hence, probability that second toy shows the even number,
=920=920
Required probability,
=(1021)×(920)=(1021)×(920)
=9/42
C | aqua_rat | aqua_rat_0002207 |
The lungs, kidneys, skin, and large intestine are all part of what organ system? | D. excretory | [
"sensory",
"respiratory",
"digestive",
"excretory"
] | Organs of the excretory system include the kidneys, large intestine, skin, and lungs. | sciq | sciq_0010749 |
Annual growth rate in moderate growth - | B. 0.5-1.0 | [
"<0.5",
"0.5-1.0",
"1.0-1.5",
"1.5-2.0"
] | Relation between annual growth rate (AGR) and population. Rating Annual GR(%) Population doubling Time Stationary population None - Slow growth <0.5 >139 years Moderate growth 0.5-1.0 139-70 Rapid growth 1.0-1.5 70-47 Very rapid growth 1.5-2.0 47-35 Explosive growth 2.0-2.5 35-28 Explosive growth 2.5-3.0 28-23 Explosiv... | medmcqa | medmcqa_0009688 |
What consists of one or two closed loops through which current can flow? | B. electric circuit | [
"cooling circuit",
"electric circuit",
"magnetic poles",
"thermal reaction"
] | An electric circuit consists of one or two closed loops through which current can flow. It has a voltage source and a conductor and may have other devices such as lights and switches. | sciq | sciq_0001385 |
A diploid zygote is formed when one sperm does what? | A. fertilizes the egg | [
"fertilizes the egg",
"cracks the egg",
"repels the egg",
"incapacitates the egg"
] | sciq | sciq_0001625 | |
Atrial depolarization in ECG is represented by | A. 1 | [
"1",
"2",
"3",
"4"
] | 1 (Description: P wave in EC6) | medmcqa | medmcqa_0001628 |
When a hammer strikes a nail, the nail | D. exerts an equal and opposite force back on the hammer. | [
"exerts balanced forces that helps it from moving.",
"exerts a force equal to the weight of the hammer.",
"exerts an unbalanced force that changes its velocity.",
"exerts an equal and opposite force back on the hammer."
] | arc_easy | arc_easy_0001352 | |
If the a radio is sold for Rs 490 and sold for Rs 465.50.find loss%. | B. 5% | [
"4%",
"5%",
"6%",
"3%"
] | sol. cp=rs490,sp= 465.50.
loss=rs(490-465.50)=rs 24.50.
loss%=[(24.50/490)*100]%=5%
Answer is B. | aqua_rat | aqua_rat_0001399 |
The reaction that releases energy for use by the cell occurs in which site? | D. mitochondrial membrane | [
"Golgi apparatus",
"endoplasmic reticulum",
"cytoplasmic membrane",
"mitochondrial membrane"
] | arc_easy | arc_easy_0001833 | |
What are used to write nuclear equations for radioactive decay? | C. nuclear symbols | [
"critical symbols",
"radioactive symbols",
"nuclear symbols",
"trigonometric symbols"
] | Nuclear symbols are used to write nuclear equations for radioactive decay. Let’s consider the example of the beta-minus decay of thorium-234 to protactinium-234. This reaction is represented by the equation:. | sciq | sciq_0000013 |
Pain insensitive structure | B. Choroid plexus | [
"Middle cerebral aery",
"Choroid plexus",
"Dural sheath",
"Falx cerebri"
] | The cranium, brain parenchyma, ependymal lining of the ventricles, and choroid plexus are all pain insensitive Ref Harrison20th edition pg 2345 | medmcqa | medmcqa_0006110 |
Pa of ethambutol in RNTCP regime ? | C. Bactristatic + detrimental to fast multiplying bacilli | [
"Bactericidal + detrimental to semidormant bacilli",
"Bactericidal + detrimental to dormant bacilli,",
"Bactristatic + detrimental to fast multiplying bacilli",
"Bacteristatic + detrimental to slow multiplying bacilli"
] | Ans. is 'c' i.e., Bactristatic + detrimental to fast multiplying bacilli Ethambutol It is selectively bacteriostatic and is active against MAC as well as some other mycobacteria. Fast multiplying bacilli are more susceptible With the triple drug therapy it hastens the sputum conversion and also helps to prevent the dev... | medmcqa | medmcqa_0005422 |
Stimuli in the brain, stomach, and small intestine activate or inhibit production of what secretion? | A. gastric juice | [
"gastric juice",
"digestive juice",
"sweat",
"metabolic juice"
] | Gastric Secretion The secretion of gastric juice is controlled by both nerves and hormones. Stimuli in the brain, stomach, and small intestine activate or inhibit gastric juice production. This is why the three phases of gastric secretion are called the cephalic, gastric, and intestinal phases (Figure 23.17). However, ... | sciq | sciq_0006514 |
What are materials that have high resistance to electric current called? | A. electric insulators | [
"electric insulators",
"cooling insulators",
"power insulators",
"motion reducers"
] | Materials that have high resistance to electric current are called electric insulators . Wood, rubber, and plastic are examples of electric insulators. Dry air is also an electric insulator. | sciq | sciq_0009673 |
In Duchennes muscular dystrophy, calf muscle is: September 2009 | D. Pseudohyperophied | [
"Hyperophied",
"Atrophied",
"Pseudoatrophied",
"Pseudohyperophied"
] | Ans. D: Pseudohyperophied Duchenne muscular dystrophy is by far the most common childhood-onset muscular dystrophy, afflicting 1 in 3300 boys with an overall prevalence of 63 cases per million. One third of these cases are due to spontaneous mutations, while the rest are inherited in an X-linked dominant manner. Duchen... | medmcqa | medmcqa_0003074 |
What "apparatus" is responsible for sorting, modifying, and shipping off the products that come from the rough endoplasmic reticulum? | B. golgi apparatus | [
"plasma apparatus",
"golgi apparatus",
"receptor apparatus",
"secretion apparatus"
] | The Golgi Apparatus The Golgi apparatus is responsible for sorting, modifying, and shipping off the products that come from the rough ER, much like a post-office. The Golgi apparatus looks like stacked flattened discs, almost like stacks of oddly shaped pancakes. Like the ER, these discs are membranous. The Golgi appar... | sciq | sciq_0009895 |
A student observes zinc turning from a solid to a liquid in a laboratory investigation. Which statement describes the change in zinc atoms while melting? | B. The zinc atoms lost their relative fixed position. | [
"The mass of the zinc atoms decreased.",
"The zinc atoms lost their relative fixed position.",
"The zinc atoms were changed into atoms of another element.",
"The size of the zinc atoms decreased."
] | arc_challenge | arc_challenge_0000312 | |
A boy pulls a sweater off over his head. His hair is attracted to the sweater due to
A. a magnetic force
B. a heat transfer
C. a chemical change
D. an electrical charge
Answer: | D. an electrical charge
| [
""
] | To determine why the correct answer is D. an electrical charge, we can analyze the situation step by step:
1. **Understanding the Scenario**: The boy is pulling a sweater off over his head, and we notice his hair being attracted to the sweater. This suggests that there is some kind of interaction between the hair and ... | mmlu | mmlu_0001227 |
A company is designing a new laptop computer. The computer must not exceed a certain weight. Which of the following is the most likely reason to have a weight restriction for the computer? | C. to make it easier to transport the computer | [
"to make it easier to test the prototype",
"to reduce the cost of making the computer",
"to make it easier to transport the computer",
"to reduce the cost of building the prototype"
] | arc_challenge | arc_challenge_0000073 | |
Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms of P ? | A. 11/P + 6 | [
"11/P + 6",
"11/P + 7",
"11/P + 2",
"11/P + 1"
] | Let Ben’s age now be B
Anita’s age now is A.
(A - 6) = P(B - 6)
But A is 17 and therefore 11 = P(B - 6)
11/P = B-6
(11/P) + 6 = B
Answer: A | aqua_rat | aqua_rat_0003585 |
The average height of 50 pupils in a class is 150 cm. Five of them whose height is 146 cm, leave the class and five others whose average height is 156 cm, join. The new average height of the pupils of the class (in cm) is? | B. 151 cm | [
"718 cm",
"151 cm",
"627 cm",
"282 cm"
] | Total height = 150 * 50 = 7500 cm.
New average
= [7500 - 5 * 146 + 5 * 156 ] / 50 = 151 cm.
Answer:B | aqua_rat | aqua_rat_0005144 |
Vertebrates and invertebrates are both groups of animals.
A vertebrate has a backbone. The backbone is made of many bones in an animal's back. A vertebrate's backbone helps connect the different parts of its body. In the drawings below, each vertebrate's backbone is colored orange.
An invertebrate does not have a backb... | B. emerald tree boa | [
"curlyhair tarantula",
"emerald tree boa",
"red-spotted purple butterfly",
"bess beetle"
] | An emerald tree boa is a reptile. Like other reptiles, an emerald tree boa is a vertebrate. It has a backbone.
A bess beetle is an insect. Like other insects, a bess beetle is an invertebrate. It does not have a backbone. It has an exoskeleton.
A red-spotted purple butterfly is an insect. Like other insects, a red-spot... | scienceqa_textonly | scienceqa_textonly_0001436 |
The level of carbon dioxide in the atmosphere is greatly influenced by the reservoir of carbon where? | A. in the oceans | [
"in the oceans",
"in the earth",
"after the oceans",
"before the oceans"
] | As stated, the atmosphere is a major reservoir of carbon in the form of carbon dioxide that is essential to the process of photosynthesis. The level of carbon dioxide in the atmosphere is greatly influenced by the reservoir of carbon in the oceans. The exchange of carbon between the atmosphere and water reservoirs infl... | sciq | sciq_0010799 |
When you heat a pot of water on a stove top, energy moves from the pot to its metal handle by what process? | B. conduction | [
"induction",
"conduction",
"convection",
"thermal radiation"
] | Sunlight is turned into electricity at a solar power plant. These power plants use a large group of mirrors to focus sunlight on one place. This place is called a receiver ( Figure below ). At the receiver, a liquid such as oil or water is heated to a high temperature. The liquid transfers its heat by conduction . In c... | sciq | sciq_0004993 |
A student has to secure 30% marks to get through. If he gets 80 marks and fails by 70 marks, find the maximum marks set for the examination. | A. 500 | [
"500",
"1000",
"1200",
"1500"
] | Here, x = 30 , y = 80 and z = 70
Therefore, Maximum marks = [100( y + z )] / x.
= [100( 80 + 70 )]/30
= 500.
ANSWER:A | aqua_rat | aqua_rat_0003498 |
The best parameter to measure air pollution is – | A. SO2 | [
"SO2",
"CO2",
"CO",
"N20"
] | null | medmcqa | medmcqa_0004205 |
Examples of acute forms of what type of diseases include the common cold and influenza? | A. viral diseases | [
"viral diseases",
"bacterial diseases",
"inherited diseases",
"attributable diseases"
] | As you will learn in the next module, animal viruses are associated with a variety of human diseases. Some of them follow the classic pattern of acute disease, where symptoms get increasingly worse for a short period followed by the elimination of the virus from the body by the immune system and eventual recovery from ... | sciq | sciq_0000725 |
Nucleus pulposus is seen in | A. Intervertebral disc | [
"Intervertebral disc",
"Medical meniscus",
"Brain",
"Vestibulo cochlear region"
] | (Intervertebral disc) (210-BDC-1 6th edition) (689-snell 9th edition)* The intervertebral disc is made up of a peripheral annulus fibrosus and a central nucleus pulposus* The physical characteristics permit them to serve as the shock absorbers* No discs are found between the first two cervical vertebrae or in the sacru... | medmcqa | medmcqa_0009173 |
The eukaryotic cell cycle is regulated by a what? | C. molecular control system | [
"protons control system",
"anti-lock control system",
"molecular control system",
"nucleus control system"
] | 12.3 The eukaryotic cell cycle is regulated by a molecular control system. | sciq | sciq_0008329 |
An urn contains 5 red, 6 blue and 8 green balls. 4 balls are randomly selected from the urn, find the probability that the drawn ball are 1 blue and 3 red? | D. 5/323 | [
"1/969",
"2/969",
"4/969",
"5/323"
] | Sample space = no. of ways 4 balls were drawn from urn = 19C4 = 3876
No. ways 1 blue balls and 3 red were drawn from bag = 6C1 * 5C3 = 60
Probability = 60 / 3876 = 5/323
Ans - D | aqua_rat | aqua_rat_0007435 |
How many numbers from 45 to 110 are exactly divisible by 12? | C. 6 | [
"5",
"7",
"6",
"11"
] | Option 'C'
45/12 = 3 and 110/12 = 9 ==> 9 - 3 = 6 Numbers | aqua_rat | aqua_rat_0004971 |
Which of the following is not a posterior relation of the left kidney? | C. Sympathetic chain | [
"Psoas major",
"Medial arcuate ligament",
"Sympathetic chain",
"Ilioiguinal nerve"
] | The sympathetic chain is not a posterior relation of the left kidney. The posterior relations of the kidney are as follows: Vessels(1): Subcostal vessels Ligaments (2): Medial and lateral arcuate ligaments Nerves (3): Subcostal, iliohypogastric, and ilioinguinal nerves Muscles (4): Diaphragm, psoas major, Quadratus lum... | medmcqa | medmcqa_0009560 |
Alpha-methyldopa is primarily used for | A. Pregnancy induced hypeension | [
"Pregnancy induced hypeension",
"Renovascular hypeension",
"First line agent in hypeension",
"Refractory hypeension"
] | They act on central alpha 2a receptors to decrease efferent sympathetic activity. It decreases t.p.r more than H.R or C.O It is infrequently used now. (Ref: Essentials of medical pharmacology, K.D Tripathi, 7th edition, page 566) | medmcqa | medmcqa_0000604 |
Breast milk is maximum at – | C. 5–6 months | [
"1–2 months",
"3–4 months",
"5–6 months",
"7–8 months"
] | Breast milk is maximum at 5-6 months of lactation -9 730 ml/day.
It is minimum at 37-38 months of lactation --> 345 ml/day. | medmcqa | medmcqa_0009466 |
Each of the integers from 1 to 14 is written on the a seperate index card and placed in a box. If the cards are drawn from the box at random without replecement, how many cards must be drawn to ENSURE that the product of all the integers drawn is even? | A. 8 | [
"8",
"12",
"11",
"10"
] | Out of the 14 integers: 7 are odd and 7 are even.
If we need to make sure that the product of all the integers withdrawn is even then we need to make sure that we have at least one even number. In the worst case:
1. we will end up picking odd numbers one by one, so we will pick all 7 odd numbers first
2. 8th number wil... | aqua_rat | aqua_rat_0005651 |
The average weight of 10 persons increases by 3.2 kg when a new person comes in place of one of them weighing 65 kg. What might be the weight of the new person? | D. 97 kg | [
"76 kg",
"80 kg",
"85 kg",
"97 kg"
] | Solution
Total weight increased = (10 x 3.2)kg
= 32 kg.
Weight of new person = (65 + 32)kg
= 97 kg.
Answer D | aqua_rat | aqua_rat_0000777 |
When a cell transforms itself into different lineage the ability us known as - | C. Trans-differentiation | [
"De-differentiation",
"Re-differentiation",
"Trans-differentiation",
"Sub-differentiation"
] | Ans. is 'c' i.e., Trans-differentiation Transdifferentiationo Transdifferentiation takes place when a non-stem cell transform into a different type of cell, or when an already-differentiated stem cell creates cells outside its already established differentiation.o Remember very important fact that it is the non-stem ce... | medmcqa | medmcqa_0006994 |
Gastric emptying sequence into the duodenum | A. Fat > protein > carbohydrate | [
"Fat > protein > carbohydrate",
"Fat < carbohydrate < protein",
"Protein < fat < carbohydrate",
"Protein > fat > carbohydrate"
] | Food rich in carbohydrate leaves the stomach in a few hours. Protein-rich foods leave more slowly and emptying is slowest after a meal containing fat.
Hyperosmotic contents in duodenum decrease gastric emptying.
CCK is also an inhibitor of gastric emptying | medmcqa | medmcqa_0006438 |
What branch of biology studies animal behavior? | D. ethology | [
"geology",
"embryology",
"microbiology",
"ethology"
] | The branch of biology that studies animal behavior is called ethology . Ethologists usually study how animals behave in their natural environment, rather than in a lab. They generally try to answer four basic questions about the behaviors they observe:. | sciq | sciq_0009185 |
Which of the following is a crucial piece of evidence supporting scientists' theory of how the continents and the ocean basins formed? | C. Currents redistribute heat in an unevenly heated liquid. | [
"Gravitational forces result in the fusion of small atoms.",
"A differentiated iron core expresses magnetic properties.",
"Currents redistribute heat in an unevenly heated liquid.",
"A stream of charged ions disperses lightweight gases."
] | arc_easy | arc_easy_0001646 |
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